Processed on 2024-03-04 14:10:57 PST.


Disclaimer: Data presented here come from a variety of sources and do not represent official EPA measurements. Please visit AirNow for official measurements.


Cumulative exposure to smoke is an important public health metric. This report summarizes the cumulative number of days air quality monitors in Vermont spent in each AQI category during the the month of November.

The tables below include only permanent monitors measuring PM2.5 and show cumulative exposure under existing NAAQS (National Ambient Air Quality Standards) and under the 2024 revised standards for PM2.5.

In the tables and plots below, ‘Old’ designates cumulative days calculated using the 2023 PM2.5 NAAQS while ‘New’ is calculated using the 2024 revised PM2.5 NAAQS. The impact of the NAAQS revision is quite clear.

November in Vermont

November 2014 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 74 12 0 0 0 0 38
New 68 18 0 0 0 0 38

November 2015 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 110 10 0 0 0 0 4
New 102 18 0 0 0 0 4

November 2016 – 8 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 109 5 0 0 0 0 10
New 95 19 0 0 0 0 10

November 2017 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 107 12 0 0 0 0 5
New 97 22 0 0 0 0 5

November 2018 – 8 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 112 5 0 0 0 0 7
New 107 10 0 0 0 0 7

November 2019 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 107 11 0 0 0 0 6
New 93 25 0 0 0 0 6

November 2020 – 8 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 104 16 0 0 0 0 4
New 96 24 0 0 0 0 4

November 2021 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 109 11 0 0 0 0 4
New 94 26 0 0 0 0 4

November 2022 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 118 2 0 0 0 0 4
New 105 15 0 0 0 0 4

November 2023 – 4 permanent monitors

Good Moderate USG Unhealthy Very Unhealthy Hazardous Missing
Old 116 2 0 0 0 0 6
New 104 14 0 0 0 0 6